Kim asked:

Is there a specific technique for estimating meteor brightness?

To answer to your narrow question, there is no formal method for estimating meteor brightness that I know of. Informally, I usually mentally review UMi stars in the North Polar sequence, a constellation near the radiant and the major bright stars that are up that night. I only feel good above quoting brightnesses in two mag bins, e.g. - v0-1, v2-3, v3-4, etc. - Kurt _______________________________________________ Sent via CSolutions - http://www.csolutions.net